String array containing top-level subdirectories

get the names of top-level subdirectories

/* shows how to get a string array holding the names of all top-level subdirectories

online at: 
https://gist.github.com/kyrathasoft/1dc1a1eb4d6a2a56827dcb5f43840afe

To compile: csc *.cs  

Here is the structure of this example program 
and associated directories, on disk:

examples/CountTopLevelDirectories
    - list.cs
    - boo
        - coo
            - chirp
                squawk
        - loo
        - who
*/

using System;
using System.IO;

namespace Example {

	class Program {
	
		static void Main(string[] args){
            if(Directory.Exists("boo")){
                string[] dirs = Directory.GetDirectories(@"boo", "*", SearchOption.TopDirectoryOnly);
                Console.WriteLine(" # of top-level subdirectories found within directory 'boo': {0}",
                    dirs.Length);
                if(dirs.Length > 0){
                    Console.WriteLine(" List of the names of those top-level subdirectories:");
                    for(int i=0; i < dirs.Length; i++){
                        string subdir = dirs[i];
                        if(subdir.StartsWith("boo\\")){ subdir = subdir.Substring(4,subdir.Length -4); }
                        Console.WriteLine("\t{0}", subdir);
                    }
                }
            }else{
                Console.WriteLine("\n Sorry. This program requires a directory named 'boo'...");
                PressToExit();
            }
		}
        
        static void PressToExit(){
            Console.Write(" Press any key to exit... ");
            Console.ReadKey();            
        }
	
	}

}